99503174 ÷ 311 
Our goal is to divide 99503174 by 311.

Going ahead to step 1:
The number 311 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 311

On to step 2:
When dividing 99 by 311, we get 0 with a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Grab the next digit (5) from the dividend, add it to 99, then carry on: 995 / 311

Let's proceed to step 3:
995 divided by 311 is 3 with a remainder of 62.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 933 away from 995, we end up with 62.
Include the next digit (0) from the dividend after 62, then repeat: 620 / 311

Going ahead to step 4:
311 goes into 620 1 times with a remainder of 309.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
If we take 311 away from 620, we end up with 309.
Take the next digit (3) from the dividend and append it to 309, then repeat: 3093 / 311

Moving on to step 5:
If we divide 3093 by 311, we get 9 and a remainder of 294.
Write down 9 as next digit of the result. 
Result so far: 319.0
Subtracting 2799 from 3093 leaves us with 294.
Append the next digit (1) from the dividend to 294 and continue with: 2941 / 311

Going ahead to step 6:
When dividing 2941 by 311, we get 9 with a remainder of 142.
The next digit of our result is 9. 
Result so far: 3199.0
Deduct 2799 from 2941 and we're left with 142.
Grab the next digit (7) from the dividend, add it to 142, then carry on: 1427 / 311

Moving on to step 7:
311 goes into 1427 4 times with a remainder of 183.
The number 4 becomes the next digit in our result. 
Result so far: 31994.0
Subtract 1244 from 1427 to get 183.
Bring next digit (4) of the dividend behind the 183 and repeat the process: 1834 / 311

Step 8:
If we divide 1834 by 311, we get 5 and a remainder of 279.
Put 5 as the next digit of the answer. 
Result so far: 319945.0
If we subtract 1555 from 1834, we get 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Let's proceed to step 9:
When dividing 2790 by 311, we get 8 with a remainder of 302.
Put 8 as the next digit of the answer. 
Result so far: 319945.8
The remainder is 302 after subtracting 2488 from 2790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Step 10:
If we divide 3020 by 311, we get 9 and a remainder of 221.
Use 9 as the next digit of our solution. 
Result so far: 319945.89
Subtract 2799 from 3020 to get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

On to step 11:
If we divide 2210 by 311, we get 7 and a remainder of 33.
The next digit of our result is 7. 
Result so far: 319945.897
The remainder is 33 after subtracting 2177 from 2210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 12:
When dividing 330 by 311, we get 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 319945.8971
The remainder is 19 after subtracting 311 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 13:
When dividing 190 by 311, we get 0 with a remainder of 190.
Write down 0 as next digit of the result. 
Result so far: 319945.8971
Subtract 0 from 190 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 14:
311 can be fit into 1900 6 times, resulting in a remainder of 34.
Put 6 as the next digit of the answer. 
Result so far: 319945.897106
If we subtract 1866 from 1900, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 15:
311 goes into 340 1 times with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 319945.8971061
Subtract 311 from 340 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 16:
When dividing 290 by 311, we get 0 with a remainder of 290.
Write down 0 as next digit of the result. 
Result so far: 319945.8971061
The remainder is 290 after subtracting 0 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

The final outcome is 319945.8971061, with a leftover of 2.9e-07.